Search a number
-
+
5678421 = 37317853
BaseRepresentation
bin10101101010010101010101
3101200111022220
4111222111111
52423202141
6321412553
766160110
oct25522525
911614286
105678421
113229311
121a9a159
13123a818
14a7b577
15772766
hex56a555

5678421 has 16 divisors (see below), whose sum is σ = 8690304. Its totient is φ = 3230784.

The previous prime is 5678419. The next prime is 5678423. The reversal of 5678421 is 1248765.

5678421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5678419) and next prime (5678423).

It is not a de Polignac number, because 5678421 - 21 = 5678419 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5678423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6231 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (543144).

Almost surely, 25678421 is an apocalyptic number.

It is an amenable number.

5678421 is a deficient number, since it is larger than the sum of its proper divisors (3011883).

5678421 is a wasteful number, since it uses less digits than its factorization.

5678421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its digits is 13440, while the sum is 33.

The square root of 5678421 is about 2382.9437676957. The cubic root of 5678421 is about 178.4058931640.

It can be divided in two parts, 56784 and 21, that multiplied together give a square (1192464 = 10922).

The spelling of 5678421 in words is "five million, six hundred seventy-eight thousand, four hundred twenty-one".

Divisors: 1 3 7 21 317 853 951 2219 2559 5971 6657 17913 270401 811203 1892807 5678421